97results about How to "Avoid misadjustment" patented technology

The invention provides an audio / video synchronization method of a mobile multimedia broadcast system, which comprises the following steps: establishing a storage address of the decoded audio data and a mapping relation table of timestamps; inquiring the mapping relation table for the timestamps of the audio data according to the storage address, to which the playing audio data point, and acquiring the timestamps of the currently playing video data; and adjusting the video playing to the audio / video synchronization state according to the timestamps of the audio data and the video data. The invention compares the playing progress of audio and video on a real-time basis based on the characteristic that the audio data are uncontrollable, and provides the corresponding adjusting opinions, so that the audio / video synchronization under the condition that the terminal can not control the 'source' can be ensured, the audio / video data timestamp confirmation mechanism is adopted to overcome the defect that error codes exist in the broadcast channel transmission, the incorrect adjustment of the audio / video synchronization caused by the error codes is overcome, and the interference of the audio / video adjustment caused by the transmission error codes of the broadcast channel is restrained.

A CT scanner pre-scans a patient by radiating rays of a lower amount from one direction to obtain a perspective prescanning image. An operator defines a main scanning area, in which images for medical application are to be captured, with reference to the prescanning image displayed on a monitor screen. A site recognizer analyzes data of the prescanning image to recognize anatomical structures located in the defined main scanning area. Based on the recognized anatomical structures and order data designating a site of inspection, it is judged whether the main scanning area corresponds to the site of inspection designated by the order data. If not, a warning is displayed on the monitor screen. The site recognizer may recognize all anatomical structures contained in the prescanning image, so that a default main scanning area may be defined on the basis of the recognition results and the order data.

An optical transmission apparatus comprising a first detector for detecting the power of the supervisory signal light separated from received wavelength-division multiplexed signal lights; a second detector for detecting the power of the wavelength-division multiplexed signal lights after the separation of the supervisory signal light; a gain-controlled type optical amplifier for amplifying the wavelength-division multiplexed signal lights; an optical attenuator coupled to the amplifier; and a control unit for controlling the optical amplifier and the optical attenuator so as to keep the output level of the wavelength-division multiplexed signal lights to a predetermined target value, wherein the control unit restrains automatic output level control by the optical attenuator when the supervisory signal light power fluctuates within its permissible range and fluctuations in the signal light power have deviated from its permissible range.

The invention discloses an adjustable microwave band-pass filter. A microwave circuit substrate is provided with a double-resonance modal annular resonator and a corresponding input coupling unit, an output coupling unit and a disturbance unit, wherein an even number of micro mechanical bridge films are placed on the resonator in a mirror symmetry mode to adjust a center frequency; and one or more micro mechanical bridge films are placed on the disturbance unit to adjust the bandwidth. The filter uses a variable capacitance effect generated by a capacitance loading structure of the micro machined bridge films to load a dual-mode resonator and a disturbance structure thereof, so that the adjustment of filtering characteristics, such as the passband center frequency, the passband bandwidth and the like can be realized by fewer micro mechanical bridge films and less chip area occupation. Compared with the prior dual-mode filter and the micro mechanical adjustable band-pass filter, the adjustable microwave band-pass filter has the advantages of more flexible structure, lower technology complexity and better device overall performance, and is suitable for filtering devices based on planar transmission lines and on-chip waveguide at the same time.

The invention discloses an automatic gain control method and device for a power carrier communication system. The method comprises the following steps of: finding a maximum value and a minimum value in continuous N ADC quantized values; calculating a difference value between the maximum value and a full-range quantized value and a difference value between the minimum value and a minimum-range quantized value; calculating the relative small value in two difference values; calculating a relative value of the relative small difference value corresponding to the 50% full-range quantized value; when the relative value is greater than an upper limit threshold value, setting an ultra-upper-limit mark to 1, otherwise, setting the ultra-upper-limit mark to 0, when the relative value is less than a lower limit threshold value, setting a low-lower-limit mark to 1, and otherwise, setting the low-lower-limit mark to 0; and, when the ultra-upper-limit mark is 1 for successive N<over> times, reducing one level of a gain value, and, when the low-lower-limit mark is 1 for successive N<sag> times, increasing one level of the gain value. The automatic gain control method and device disclosed by the invention have high immunocompetence to pulse noise in a low signal-to-noise ratio; and simultaneously, the automatic gain control method and device are low in complexity, and easy to realize.

The invention discloses a control method and electronic devices. The control method comprises detecting the first state of the first electronic device; judging whether the first state meets the first preset condition or not to obtain the first judgment result; generating a switch instruction if yes; enabling the first electronic device to be switched into the second working mode from the first working mode according to the switch instruction, wherein the control instruction is generated by the first electronic device under the first working mode according to the collection result of a spatial parameter collection unit, the control instruction is used for controlling the position of a display focus located on the second electronic device, and the first electronic device stops controlling the position of the display focus under the second working mode. According to the control method and the electronic devices, the control on the display focus can be selectively achieved or shielded, the error adjustment can be avoided, and accordingly the deviation between the pointing position of the first electronic device and the actual position of the display focus can be avoided and the user experience can be improved.

The invention relates to a method for determining the location of the ocular pivot point (ADL) in an eye (10) of a test person. In the method, the mean curvature (KH) of the cornea (14) of the eye (10) is determined. The mean phase error (PF) of the eye (10) is determined as is the eye length (LA) from the mean curvature (KH) and the mean phase error (PF). The location of the ocular pivot point (ADL) is determined from the eye length (LA).

The invention discloses a method for inhibiting snoring. Snoring is inhibited by adjusting the angle of an intelligent bed. The method specifically includes the following steps of obtaining sounds in a room; judging whether the sounds are snoring sounds of a human body or not; if the sounds are not the snoring sounds, keeping an existing angle of a bed board, and returning to the step of obtaining the sounds in the room; if the sounds are the snoring sounds, adjusting the angle of the bed board once in a preset mode, and returning to the step of obtaining the sounds in the room while adjusting or after adjusting is completed. The invention further discloses an intelligent bed used for achieving the method for inhibiting snoring. According to the method and the intelligent bed, as whether the snoring sounds exist in the room or not is judged, and whether the angle of the bed board is adjusted or not is controlled through the snoring sounds to adjust the bed board to be at the angle suitable for a user to sleep, snoring of the user is inhibited, and the sleeping quality of the user is improved.

The invention discloses a corrected mold decision multi-mode blind equalization method MMDMMA. The method comprises the following steps: re-defining a cost function, and acquiring a weight vector update formula of a forward equalizer and a feedback filter through the defined cost function according to a stochastic gradient descent method; replacing a fixed decision factor of the conventional mold decision multi-mold blind equalization method MMDMMA by using a leakage factor with time-variant characteristics, so that a time-varying signal can be accurately tracked. The replacement has the effects that a decision error is large, a time-varying leakage factor is large, and a convergence rate is high before convergence; the decision error is small, the time-varying leakage factor is small, and the convergence rate is low after the convergence; due to the adoption of the time-varying leakage factor, divergence of the blind equalization process in the MDMMA method is avoided, and misadjustment is avoided. The method is low in mean square error, high in convergence speed, and high in capacities of inhibiting intersymbol interference and correcting phase rotation. Compared with a mold decision multi-mode blind equalization method MDMMA and a norm blind equalization method CMA, the method MMDMMA is obviously improved.

The invention relates to the field of an aerospace camera focusing control technology and provides an out-of-focus compensation device of a space camera and an applicable out-of-focus compensation method of the out-of-focus compensation device. The out-of-focus compensation device of the space camera comprises a focusing mechanism, a focusing motor, a motor driving circuit, a focusing encoder, an imaging unit and a system controller. The applicable out-of-focus compensation method comprises the following steps that: debugging of receiving a shooting command, shooting time and a focusing command is carried out; the system controller controls the imaging unit to collect image data; an optimal focal plane position of the camera is calculated according to the image data, an image data position mark and a focal plane position; and the optimal focal plane position of the camera and the focusing command are sent to the system controller. The out-of-focus compensation method of the space camera disclosed by the invention simplifies the determination of the optimal focal plane position of the camera; and the optimal focal plane position can be determined by adjusting the focal plane position for one time in a camera shooting process.

The invention provides a flash light control method and device. The method comprises the following steps of: obtaining currently previewed image data acquired by a camera; performing face recognition of the image data; determining the pre-estimated age bracket of a figure in the image data; and, adjusting the current flash light mode according to the pre-estimated age bracket. Automatic adjustment of the flash light mode is realized; different degrees of damages of flash light on different crowds can be avoided; and convenience is provided for users.

A three-phase unbalanced load adjustment method based on the power and electricity consumption of a low-voltage power distribution network comprises the following steps of 1, acquiring the power dataof the low-voltage power distribution network, establishing an active power matrix, and calculating the average active power, the average active power and the three-phase average total power of the phases A, B and C according to the active power matrix; 2, obtaining a calculation formula for calculating the three-phase unbalance degree in the low-voltage power distribution network by the active power; 3, calculating the total unbalance degree of the low-voltage power distribution network by adopting the active power; 4, when the total unbalance degree is larger than a set threshold value, solving the active power adjustment amount; and 5, according to the active power adjustment amount, solving a user needing phase modulation and carrying out phase modulation on the user. According to themethod, the problem of misadjustment caused by the random load access or fluctuation when the load current is detected on a site to guide the load adjustment is avoided, the working efficiency is improved, and guidance can be provided for the user to optimize the access phase selection, and therefore the three-phase imbalance degree of the low-voltage distribution network is restrained.

The present invention relates to the technical field of communications. Disclosed are a service notification method, device and system invented for solving the wrong determination made by a wireless network on the network performance and a wrong adjustment made by the wireless network on a radio resource management algorithm. One of the methods comprises: if a user equipment leaves an original network, the user equipment sending to the original network a first piece of instruction information, the first piece of instruction information being used for instructing the original network not to schedule the user equipment. The present invention is mainly applied in scheduling control of a dual-mode dual-standby or multi-mode multi-standby user equipment.

The invention discloses an energy-saving controlling method for a power-supply system and a device thereof. The method comprises the following steps: (1) setting the number of rectification modules of a power-supply system corresponding to different loads; and (2) monitoring the amount of the load and selecting the rectification modules to be used corresponding to the monitored amount of the load according to the setting in step (1). The device comprises a setting unit for setting the number of the rectification modules of the power-supply system corresponding to different loads; and a monitoring unit for monitoring the amount of the load and selecting the number of the rectification modules to be used corresponding to the monitored amount of the load according to the setting in the setting unit. The invention needs no extra workload, and has good energy-saving effect.

The invention discloses a sound volume adjustment method and device; the sound volume adjustment method is applied to a first electronic device and comprises the steps: when the first electronic device outputs first sound information with a first sound volume value, a first sound volume control instruction is generated; and the first sound volume control instruction is sent to a second electronic device, the second electronic device is allowed to execute the first sound volume control instruction, and a current output sound volume value of the second electronic device is adjusted to a preset sound volume value from a second sound volume value.

To automatically adjust latch timing for data, while reducing the number of latch circuits to be provided. A read controller 104 reads out first check data, which are written in a memory 100, from a check data storage part 102 and then outputs a latch pulse signal s104c to a delay selection part 105. The selection part 105a outputs a delayed pulse signal, with the latch pulse signal s104c being delayed at a leading delay circuit 1051, to a latch circuit 106. The latch circuit 106 latches the check data from the memory 100, when it receives the delayed pulse signal. Subsequently, next data is read out from the memory 100, and the selection part 105a outputs a delayed pulse signal, which is delayed at a delay circuit 1052 located in the following stage, to the latch circuit 106.

The invention discloses a double-heading valve with an automatic changeover function. The double-heading valve is composed of a double-heading valve portion and a shutoff valve portion. The double-heading valve portion comprises a double-heading piston and a double-heading check valve which are arranged in a double-heading valve body. The shutoff valve portion comprises a shutoff piston and a shutoff check valve which are arranged in the double-heading valve body. Pathways which communicate with a brake cylinder pipe, an average pipe, a purpose pipe, a main blast pipe and a double-heading signal pipe are mounted on the double-heading valve body. According to the double-heading valve with the automatic changeover function, status signal pathways are added on the double-heading valve body and a manual changeover valve is removed. When a locomotive is used as a double-heading locomotive, a double-heading signal is inputted and the double-heading valve is in a double-heading position, it is guaranteed that the release of brake of the double-heading locomotive is consistent with that of a leading locomotive and the coordination control over the double-heading locomotive and the leading locomotive is realized, and therefore misadjustment, leaking of adjustment and the like caused by manual rotation of the changeover valve are avoided. The double-heading valve with the automatic changeover function reduces workloads, guarantees traffic safety, improves transport efficiency and has higher social benefits and higher economic benefits.

A method for regulating frequency of clock includes filtering virtual clock (VC) pulse to obtain network time delay wave form, filtering jitter of wave form when network is on transmission, judging whether phase difference accumulation value of VC to local recovery clock is over preset threshold or not at preset time interval (PTI) and judging whether there is network time delay jitter over preset message arrival frequency and amplitude range or not at PTI if it is, regulating frequency of two said clocks to be identical if it is or otherwise decreasing said value of two said clocks. The client end for realizing said method is also disclosed.

The invention relates to a method for determining strip steel width and strip steel straight deviation according to measured radial force of a plate shape roller. The plate shape measurement roller conducts measurement through a fixed width subsection manner and an edge part subsection encryption manner, measuring sections of the plate shape measurement roller are sequentially numbered from the operation side of a rack to the transmission side of the rack, and whether the measuring sections are starting coverage measuring sections or not is judged; then quadratic polynomial curve fitting is carried out, the width coverage rate of the measuring sections is solved, and the distance between the strip steel edge of the operation side and the outer edge of the first measuring section on the operation side and the distance between the strip steel edge of the transmission side and the outer edge of the first measuring section on the operation side are further obtained; and the strip steel actual width and strip steel straight deviation are further obtained. The method has the beneficial effects that strip shape mistuning caused by inaccurate strip steel width is avoided, the robustness of a strip shape control system is improved, and the application scope of the strip shape control system is enlarged.

The present invention discloses an automatic gain control method and apparatus of audio signals. The method includes the following steps that: amplitude zero-crossing points are identified in audio signals to be processed, intervals between adjacent zero-crossing points are determined as zero-crossing intervals; at least one gain adjustment interval is determined according to the zero-crossing intervals; the effective state of the audio signals is determined according to the amplitude of the audio signals in the gain adjustment intervals; if it is determined that the effective state of the audio signals in the current gain adjustment interval changes, and the change of the effective state of the audio signals in the current gain adjustment interval lasts a set duration, the adjustment gain of the current gain adjustment interval is determined according to the effective state of the audio signals in the current gain adjustment interval; and the amplitude of the audio signals in the current gain adjustment interval is adjusted according to the adjustment gain, and the adjusted audio signals are outputted. With the automatic gain control method and apparatus of audio signals provided by the above technical schemes adopted, gain adjustment can be performed on the audio signals in the time domain, and at the same time, the distortion of the audio signals in the frequency domain can be decreased to a great extent, and user experience can be enhanced.

The invention provides an air conditioner low-temperature refrigeration control method and device and an air conditioner. The air conditioner low-temperature refrigeration control method comprises the steps that whether the air conditioner meets a low-temperature refrigeration starting condition or not is judged, and if yes, the air conditioner enters a low-temperature refrigeration mode; in the low-temperature refrigeration mode, whether the initial set condition of an outdoor unit is met or not is judged, and if yes, the outdoor unit is controlled to operate at the initial rotating speed S; and whether the air conditioner meets the low-temperature refrigeration protection condition or not is detected, and if yes, the rotating speed of the outdoor unit is adjusted. According to the embodiment, the problem that in low-temperature refrigeration of the air conditioner, an outer fan continuously works, return air carries liquid, and liquid impact is caused is solved.

A needle holder (7) is provided, in particular, for industrial sewing machines, in which sewing machine needles having different needle gauges and preferably different cylindrical shanks or shafts are supported or held in such a manner that they can be adjusted in a transverse direction. This permits an adjustment of the relative position between the sewing needle (4) and the gripper (6), without requiring an adjustment of the gripper position and / or the needle guard position.

The invention discloses an equipment control method and device, a storage medium and electronic equipment. The equipment control method can be applied to the electronic equipment and comprises the steps of detecting whether a video is currently played or not; if it is detected that the video is currently played, detecting whether the electronic equipment is in a horizontal screen playing mode or not; if it is detected that the electronic equipment is in the horizontal screen playing mode, locking screen setting of the electronic equipment; and shielding a preset function of the electronic equipment, wherein the preset function at least comprises one of returning to a previous-level interface, returning to the main desktop, checking a recent task and automatically rotating the screen. According to the application, the screen setting can be locked during video playing on the system level of the electronic equipment, and the corresponding screen setting is effectively prevented from beingmistakenly adjusted.

The invention discloses a distortion counteract method for linear amplifier, which comprises: coupling real-time distortion-counteracted signal on output end of linear amplifier circuit to send to narrow-band receiver to detect white noise signal and change into dc for automatic controller; controlling attenuator in error counteract circuit by said controller to adjust amplitude and phase of signal on its branch to counteract said white noise signal and distortion signal and output treated signal. This invention reduce cost and avoid risk from stray signal without pilot-frequency injection, is not affected by carrier and distortion signal, and ensures the stability of linear amplifier circuit.

The invention discloses a manual and automatic integrated shifter based on Hall induction, which relates to the field of shifter control and mainly comprises a gear shifting rod, a gear switching detection module, a manual-automatic switching detection module and a main control module. According to the invention, the Hall sensor is used, the angle of the gear shifting rod is changed during gear shifting, the magnetic flux of the Hall sensor is changed, Hall angle induction currents with different magnitudes are generated, and gears to be switched are identified according to the magnitudes of the induction currents, so that gear switching identification of a single Hall sensor is realized, the structure of the gear shifter is simplified, and interference among a plurality of Hall sensors isavoided; and during manual and automatic switching, the conduction state of the Hall switch is changed through the displacement of the gear shifting rod, so that the switching of manual and automaticmodes is realized, and meanwhile, by utilizing the Hall switch, the situation of interfering the Hall sensor does not exist during manual and automatic switching, and the false adjustment of gears isavoided.